Example usage for java.lang Double NaN

Introduction

In this page you can find the example usage for java.lang Double NaN.

Prototype

double NaN

To view the source code for java.lang Double NaN.

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Document

A constant holding a Not-a-Number (NaN) value of type double .

Usage

From source file:gedi.lfc.foldchange.PosteriorMeanLog2FoldChange.java

@Override
public double computeFoldChange(double a, double b) {
    if (Double.isNaN(a) || Double.isNaN(b))
        return Double.NaN;
    return (Gamma.digamma(a + priorA) - Gamma.digamma(b + priorB)) / Math.log(2);
}

From source file:Util.java

public static double median(double[] values) {
    double[] v = new double[values.length];
    double median = Double.NaN;
    if (v == null || v.length == 0) {
        throw new IllegalArgumentException("The data array either is null or does not contain any data.");
    } else if (v.length == 1) {
        median = v[0];//from  w w w.j  a  va  2s  .c  o m
    } else {
        System.arraycopy(values, 0, v, 0, values.length);
        Arrays.sort(v);
        if (isEven(v.length)) {
            int i = (int) Math.ceil(v.length / 2D);
            double n1 = v[i];
            double n0 = v[i - 1];
            median = (n0 + n1) / 2;
        } else {
            median = v[v.length / 2];
        }
    }

    return median;

}

From source file:Main.java

/**
* <p>Returns the minimum value in an array.</p>
* 
* @param array  an array, must not be null or empty
* @return the minimum value in the array
* @throws IllegalArgumentException if <code>array</code> is <code>null</code>
* @throws IllegalArgumentException if <code>array</code> is empty
* @see IEEE754rUtils#min(double[]) IEEE754rUtils for a version of this method that handles NaN differently
*//*w  w w  .  j a v a2 s.c o m*/
public static double min(double[] array) {
    // Validates input
    if (array == null) {
        throw new IllegalArgumentException("The Array must not be null");
    } else if (array.length == 0) {
        throw new IllegalArgumentException("Array cannot be empty.");
    }

    // Finds and returns min
    double min = array[0];
    for (int i = 1; i < array.length; i++) {
        if (Double.isNaN(array[i])) {
            return Double.NaN;
        }
        if (array[i] < min) {
            min = array[i];
        }
    }

    return min;
}

From source file:Main.java

/**
 * <p>Returns the maximum value in an array.</p>
 * //from   ww w .  j  av  a 2  s. c  om
 * @param array  an array, must not be null or empty
 * @return the minimum value in the array
 * @throws IllegalArgumentException if <code>array</code> is <code>null</code>
 * @throws IllegalArgumentException if <code>array</code> is empty
 * @see IEEE754rUtils#max(double[]) IEEE754rUtils for a version of this method that handles NaN differently
 */
public static double max(double[] array) {
    // Validates input
    if (array == null) {
        throw new IllegalArgumentException("The Array must not be null");
    } else if (array.length == 0) {
        throw new IllegalArgumentException("Array cannot be empty.");
    }

    // Finds and returns max
    double max = array[0];
    for (int j = 1; j < array.length; j++) {
        if (Double.isNaN(array[j])) {
            return Double.NaN;
        }
        if (array[j] > max) {
            max = array[j];
        }
    }

    return max;
}

From source file:com.liferay.dynamic.data.mapping.form.evaluator.internal.functions.IsDecimalFunction.java

@Override
public Object evaluate(Object... parameters) {
    if (parameters.length != 1) {
        throw new IllegalArgumentException("One parameter is expected");
    }/*from   www  .j av a  2 s  .com*/

    Double value = NumberUtils.toDouble(parameters[0].toString(), Double.NaN);

    return !value.isNaN();
}

From source file:dbseer.gui.panel.DBSeerPredictionInformationChartPanel.java

public DBSeerPredictionInformationChartPanel(JFreeChart chart) {
    super(chart);
    verticalCrossHair = new Crosshair(Double.NaN, Color.GRAY, new BasicStroke(0f));
    CrosshairOverlay crosshairOverlay = new CrosshairOverlay();
    crosshairOverlay.addDomainCrosshair(verticalCrossHair);
    this.addOverlay(crosshairOverlay);
}

From source file:de.qaware.chronix.solr.type.metric.functions.aggregations.Avg.java

@Override
public void execute(MetricTimeSeries timeSeries, FunctionValueMap functionValueMap) {

    //If it is empty, we return NaN
    if (timeSeries.size() <= 0) {
        functionValueMap.add(this, Double.NaN);
        return;//www .  ja  v a2s  .c om
    }

    //Else calculate the analysis value
    int size = timeSeries.size();
    double current = 0;
    for (int i = 0; i < size; i++) {
        current += timeSeries.getValue(i);
    }
    functionValueMap.add(this, current / timeSeries.size());
}

From source file:net.myrrix.common.stats.IntWeightedMean.java

public IntWeightedMean() {
    this(0, Double.NaN);
}

From source file:com.joliciel.jochre.stats.MeanAbsoluteDeviation.java

public void clear() {
    values.clear();
    meanAbsoluteDeviation = Double.NaN;
    dirty = false;
}

From source file:net.myrrix.common.stats.DoubleWeightedMean.java

public DoubleWeightedMean() {
    this(0.0, Double.NaN);
}